Take-off mechanism for glass-blowing pipes.



B. D. CHAMBERLIN. TAKE-OFF MECHANISM FOR GLASS BLOWING PIPES.

APPLICATION HLED JAN- 4.1915. I

Patented Oct. 12, 1915.

4 SHEETS-SHEETI WHneme/o B. D. CHAMBERLIN.

TAKE-OFF MECHANISM FOR GLASS BLOWING PIPES.

APPLICATION FILED JAN. 4. 1915- Patented Oct. 12, 1915.

4 SHEETS-SHEET 2 WHY: coo ea B. D. CHAMBERLIN.

TAKE-OFF MECHANISM FOR GLASS BLOWING PIPES.

APPLICATION FILED JAN. 4. 1915.

4 SHEETS-SHEET 3.

Patented Oct. 12, 19'] B. D. CHAMBERLIN,

TAKE-OFF MECHANISM FOR GLASS BLOWING PIPES.

APPLICATION FILED JAN. 4. 1915.

1,156,858. Patented Oct. 12, 1915.

4 SHEETS-SHEET 4- UNITED STATES PATENT OFFICE.

BENJAMIN D. CHAMBERLIN, 0F CORNING, NEW YORK, ASSIGNOR TO EMPIRE MACHINE COMPANY,

OF PORTLAND. MAINE, A CORPORATION OF MAINE.

TAKE-OFF MECHA ISM Eon GLASS-BLOWING PIPES.

Specification of Letters Patent.

Patented Oct. 12, 1915.

Original application filed August 24, 1912, Serial No. 716,915. Divided and this application filed January 4,

1915. Serial No. 505.

To all whom it may concern:

Be it known that I, BENJAMIN D. CHAM- BERLIN, a citizen of the United States of America, and a resident of Corning, New York, have invented certain new and useful Improvements in Take-Off Mechanism for Glass-Blowing 'Pipes, of which the following is a specification.

The invention here sought to be patented is especially applicable to that type of machines in which theblow-pipe frame is pivoted upon a horizontal pivot and is moved down into a vertical position for the blowing of the blank carried by a removable blow-iron held in such frame, after which blowing the frame is again swung up and the blow-pipe removed. I

' The present invention relates to means whereby upon the upward swing of the frame after the blowing has been performed, the blow pipe will be released from the devices by which it was held prior to and at the time of blowing, and will be left hanging pendent in the frame in a condition ready for removal. This is advantageous, not only in allowing the ready removal of the blow-pipe, but in that the blow-pipe assumes a vertical position immediately following the blowing, whereby the still hot blown article is not twisted or turned by gravity.

For this purpose, it consists in the construction, arrangement and combination of the several parts of which it is composed, as will be hereinafter more fully described and claimed.

Referring to the accompanying drawings, in which corresponding parts are designated by corresponding marks of reference, Figure l is a front elevation of a machine embodying this invention, the parts being shown in the position they occupy during molding. Fig. 2 is a fragmental elevation of certain parts, the blow-pipe frame being shown in the position it assumes during the molding period, together with a blow-pipe inserted therein. Fig. 3 is a fragmental front elevation of the blow-pipe frame in its horizontal position with the blow-pipe inserted therein, the lower part thereof being shown. Fig. 4 is an end View of the blow-pipe releasable guide bearing for the gather end of the blow-pipe. Fig. 5 is a plan view thereof. is a horizontal front eleva In the machine in association with which I have my blow-pipe supporting mechanism, there is, by preference, a vertical Webbed standard 2, arising from a troughshaped base 1. In the standard near the top thereof is mounted a cam disk 6, driven intermittently from a main "drive shaft 3, the construction being such that the disk will be driven through a certain angular movement, then arrested and then again put in movement to complete its full rotation, for each article produced. A suitable mold mechanism 174 is located at the base of the standard and suitable air supplying devices are also provided.v

A blow frame adapted to receive and hold a removable blow-pipe is mounted on the standard 2 in front of the disk 6, to oscillate in a vertical plane around an axis concentric to that of the rotation of the disk, and the disk is provided with a cam run 62 in its forward face which through suitable mechanism serves to oscillate the blow-pipe frame. The cam run 62 is so shaped that when the parts are in normal position the blow-pipe frame is substantially horizontal and that it will during the movement of the cam disk first be swung in the-direction reverse to that of the movement of the disk; after a rest will then be' reversed inits movement and be swungin the direction of the movement of the disk until verticaland will during further movement of-the disk be temporarily held in its vertical position; I

. tion with the machine.

the gather of glass) of the blow-pipe slightly above the horizontal position, which is the normal position of the blow-pipe frame, and positions the blow-pipe for the marvering and cupping of the blank thereon; that the next movement of the blow-pipe, (which is in the same direction as the rotation of the disk) causes the introduction of blowout air-into the blank and places the blowpipe in a vertical position with the blank thereon in proper relation to the mold for the blowing ofthe blank therein, that thetemporary arrest of motion of the blowpipe frame permits the elongatlon of the gather, and that the subsequent movement of the blow-pipe frame in the direction reverse to that of the rotation of the disk restores it to its normal'position. These movements and the rest at marvering and cupping are in the construction shown all due to the rotation of the cam disk and are functions of the rotation of that wheel, and details of the construction and arrangement of the several parts referred to are shown in my original application Number 716,915, filed August 24, 1912, (now Patent No. 1,124,702, dated J anuary 12, 1915) of which this is a division.

The blow-pipe frame comprises a casting 9 having on its rear face the trunnion by which it is mounted in the standard 2, and a skeleton extension formed by pipes 10 and 11 on each side of the casting. These'pipes carry at their upper end, an air head casting 12, through which air is admitted for blowing purposes, and which suplports the shell 15 of a blow-pipe chuck. ivoted within radial slots 19 in the chuck shell are jaws 20, the rear ends of which are normally drawn inwardly by springs 21, whereby the outer ends of such jaws are drawn radially outward. Slidably mounted in the outer end of the chuck shell is a collar 22 having a bell mouth, and having its rear end beveled and adapted when the collar is slid inwardly within the chuck shell to contact with the noses 23 upon the outer edges of the jaws 20, and thereby throw the front end of the jaws inwardly and against a serrated shoulder formed upon the upper end of the blow-pipe 24 which is to beused in connec- The terms upper and lower, are here used in respect with the blow-pipe frame and parts carried thereon to refer to positions assumed while the blow-pipe frame is in its vertical position.

The chuck shell carries a crown gearing 25 which meshes with a pinion 26 on a shaft 27 which, for the purpose of this application, may be driven in any proper manner, and whereby the blow-pipe will be rotated through the chuck and driving connection so long as it is clamped to such chuck and the shaft 27 is rotated.

Attached to the lower end of the lower skeleton extension of the blow-pipe frame is a bracket 36, projecting forwardly from the face of the frame and carrying on its forward end an anti-friction roller 37. Pivoted to the forwardly extending portion of the bracket 36, and extending upwardly therefrom is a lever 38, having an antifriction roller 39, on the upper end thereof, while a third anti-friction roller 40, is mounted at the pivotal point of the lever 38. The rollers form a bearing for the lower end of a blow-pipe when held in the frame, the forwardly projecting bracket serving as a fixed guide in the insertion of the blow-pipe. The rear face of the lever 38 has a roller 41 thereon, with which a beveled face 42, on a rod 43, slidingly carried by the blow-pipe frame, contacts for the purpose of moving the guide roller 39 toward the fixed roller 37, and thus engaging and rotatably supporting the lower end of the blow-pipe when the same has been inserted between them. The sliding rod 43 has its upper end connected to an intermediate portion of a hand lever 44, pivoted at 45, to the upper skeleton portion of the blow-pipe frame the lever also carrying a yoke 46, engaging an annular groove 47 upon the chuck shell 15, whereby an upward movement of such lever will not only close the jaws 20 upon the upper end of a blowpipe inserted in the chuck, but will also cause the movable guide roller 39 to be shifted to engage and position the lower end of the blow-pipe. The blow-pipe frame below its center has also pivoted to its rear face one end of a lever 48, the opposite end of which is connected to the sliding rod 43, said lever carrying on its rear face a stud 49, adapted in the rotation of the main cam disk to be thrown by a stud 90 thereon for the purpose of automatically opening the chuck jaws 20 and the blow-pipe guide formed by the rollers 37, 39, and 40, as will be hereinafter described.

A lever 50 has its one end mounted on a horizontal pivot 51, in the lower end of the lower extension of the blow-pipe frame, and carries in its upper end a yoke 52, the yoke being normally held in alinement with the aXis of a blow-pipe inserted in the frame, by a spring 53, the yoke opening sidewise in such manner that when the blow-pipe is inserted in the chuck and in the guide formed by the rollers 37, 39 and 40 of the blow-pipe frame when horizontal, it'will also be inserted in the yoke. The lever 50 is, however, capable of swinging on its pivot 51, under the pressure exerted thereon by a collar 54 on the blow-pipe when the blow-pipe frame is inclined, and the blow-pipe released, as will be hereinafter described. Normally the collar 54 is not in contact with the yoke, but when in contact therewith is prevented from sliding off the yoke by the pins 55 on the latter.

In the operation of the device as described a blow-pipe having a gather of glass thereon has its upper end placed within the bell mouth of the chuck and has its lower part placed between the rollers 37, 39, and 40, after which the handle 44 is pulled upwardly thus clamping the upper end of the blow-pipe in the chuck and simultaneously closing the guide rollers upon its lower portion. The rotation of the disk now swings the blow-pipe frame in such a way that the gather end of the blow-pipe is lifted for marvering and is then lowered into cooperative relation with the mold. As the blowpipe frame swings back to normal horizontal position after the blowing of the bulb the projection 90 on the cam disk as before stated, will contact with the lever 48 of the chuck releasing system and actuate the latter to release the blow-pipe, which will slide in the guide formed by the rollers 37 39, and 40, thus bringing the collar 54: on the blowpipe against the yoke 52, whereupon the Weight of the blow-pipe will swing the lever 50 around its pivot 51. In this motion the blow-pipe will be carried out of the guide formed by the rollers 37, 39 and 40, which have been opened and the blow-pipe will remain suspended in a vertical position from such yoke, the lever being arrested in the position shown in Fig. 6 by the contact of the tail thereof with a dash pot 196 carried on the bracket 158. In this position the blown bulb is pendent from the blow-pipe, thereby preventing distortion of the neck thereof by bending. When the blow-pipe is removed from the yoke, the spring 53 will return the lever 50 to its normal position as shown in Fig. 3.

Inasmuch as this division is filed for the purpose of containing claims merely upon the take-off mechanism, I do not by failure to claim other features than those relatingv to this mechanism intend to abandon the same, as such other features form the subject-matter of other applications.

Having thus described my invention what I claim and desire to secure by Letters Patent is:

1. In a glass blowing machine, the combination with a pivoted frame, of a blow-pipe chuck thereon, means for releasing the blowpipe from the chuck, and a take-off device Eivoted to the frame and supporting the low-pipe in a vertical position when released from the chuck.

2. In a glass blowing machine, the combination with a pivoted frame having a substantially horizontal normal position, and a vertical molding position, of means for releasably holding a gathering iron in the frame,and a take-01f mechanism receiving the gathering iron and supporting it vertically when the frame returns to normal position.

3. In a glass blowing machine, the combination with releasable pipe retaining means normally holding the pipe substantially horizontal and movable for presenting it vertically for molding, and a talre-o mechanism receiving the pipe and support ing it vertically when released by the retaining means after the molding.

4. In a glass blowing machine the combination with a pivoted frame having a substantially horizontal position and a vertical molding position, of means for releasably holding a pipe in the frame, means actuated on the return of the frame to horizontal o sition for releasing such means, and a ta eoff lever pivoted to the frame and receiving the pipe and supporting it vertically when the frame returns tonormal position.

In testimony whereof I have hereunto signed my name in the presence of two witnesses.

DELPHINE KEAGLE, J. WILLIS DRAKE. 

